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A study found that the average time it took a person to find a new job was 5.9 months. If a sample of 36 job seekers was surveyed, construct the 99% confidence interval of the mean of all job seekers to find a new job. Assume the standard deviation is 0.8 months.

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Final answer:

To construct a 99% confidence interval of the mean time it takes job seekers to find a new job, we can use the formula: μ ± z * (σ/√n). Given the average time, sample size, and standard deviation, we can calculate the confidence interval. The 99% confidence interval for the mean time it takes job seekers to find a new job is (5.5652, 6.2348) months.

Step-by-step explanation:

To construct a 99% confidence interval of the mean time it takes job seekers to find a new job, we can use the formula: μ ± z * (σ/√n), where μ is the population mean, σ is the standard deviation, n is the sample size, and z is the z-value for the desired confidence level.

Given that the average time is 5.9 months, the sample size is 36, and the standard deviation is 0.8 months, we can calculate the z-value using a standard normal distribution table or a statistical software. For a 99% confidence level, the z-value is approximately 2.576.

Substituting the values into the formula, we get the confidence interval: 5.9 ± 2.576 * (0.8/√36) = 5.9 ± 0.3348. Therefore, the 99% confidence interval for the mean time it takes job seekers to find a new job is (5.5652, 6.2348) months.

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